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Topic: installing oilcooler on SR400
Jaap
Member
Posts: 1
installing oilcooler on SR400
on: June 13, 2018, 07:55

Living now for the last years in the south of Spain, temperatures here can rise quite high. On some rides i saw the oilthemperature from my 2015 SR400 going up to 120 C. For that reason i want to install an oil cooler. Anyone has experience with installing one and has tips for me ? I can buy a good cooler from a Honda xr400, that will fit nicely on the front frametube. Does it matter, witch direction the oil flows through the cooler?. Do i have to install a stronger oilpump? I would appreciate if members can share their experience on this forum.


Original from Holland, now living the last few year in Andalusie, Spain. Driving motorbike from the time i was 17 . First bike was a ( dutch) 2 stroke 175 cc Eijsink, later came a Honda cm 400T and a Yamaha xs650, the last I still own. Since 2 years I was lucky to buy an old love, a SR400 from 2015 wich i use almost daily over here for nice mountain rides.

JohnW
Member
Posts: 25
Re: installing oilcooler on SR400
on: June 22, 2019, 20:23

Whilst I realise temperatures in Spain are higher than in UK I doubt whether it warrants fitting an oil cooler on your SR400. As the bike uses the frame as an oil reservoir this in itself acts as an oil cooler.

I am sure if Yamaha thought an oil cooler was needed for hot countries they would have specified one.


Live in Cambridgeshire

andy talbott
Member
Posts: 41
Re: installing oilcooler on SR400
on: June 22, 2019, 22:06

Jaap, Understand your concerns but do you go on long runs ? if not no problem. Similar to John I think Yamaha would have looked at the global market when designing the bike. Just my own thoughts…occasionally I ride my bike hard for a fair distance and it gets hot [I use a temp gauge in the oil filler] if it gets too much over 100 deg I ease off a bit.


Andy


JohnW
Member
Posts: 25
Re: installing oilcooler on SR400
on: June 23, 2019, 17:54

Quote from andy talbott on June 22, 2019, 22:06

Similar to John I think Yamaha would have looked at the global market when designing the bike.

Andy


Quite so, in fact the Yamaha T80 Townmate step through has very little finning on cylinder or head, and only 850cc of oil which is in the crankcase and also serves the gearbox. These little bikes (like the Honda C90 Cub) were sold all over the world and never seem to suffer from over heating. In fact a few years ago some guys rode some T80's across the Sahara Desert https://extremetrifle.com/events_old/wrongwayround-sahara.html

I am sure the SR and XT models cope equally well with extreme temperatures as standard.


Live in Cambridgeshire

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